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1、摘要本设计是关于可变轴距多轴钻床的设计。设计一种钻床用钻轴均布可调多轴头。该多轴头各轴在圆周方向均布却可方便地沿直径方向同步调整，普通钻床为单轴机床，但安装上多轴箱就会成为多轴的钻床，改造成多轴钻床后，能大大地缩短加工时间，提高生产效率。本设计涉及一种可调间距的多轴钻床，包括机身，底座，工作台，主电机，主轴箱设置在机身上并位于工作台的上方，所述的主轴箱内设有万向节，万向节的上端通过齿轮或带轮与主电机相连接，万向节的下端与钻头主轴相连接，设计内容包括齿轮分布与选用、轴的设计、多轴箱的选用、导向装置设计等。不过国内现在多轴钻床传动箱大都采用万向节连杆式传动结构，其缺点是钻杆位
2、置调节由万向节和连杆实现，调节麻烦，调节位置不准确，万向节的存在还使传动箱的轴向尺寸增大，传动刚性很差，这些缺点都可使工件孔的位置精度和尺寸精度不易保证，造成装配困难。关键词：多轴钻床;可调轴距;多轴箱AbstractThisdesignisaboutthevariablewheelbasemulti-axisdrillingmachinedesign.Introductionofadrillingmachinedrillshaftcanbeadjustablemultispindleheads.Themultiplespindleaxisinareuniformlydi
3、stributedinthecircumferencedirectioncaneasilyalongthediameterdirectionsynchronousadjustment,theordinarydrillisasingleaxismachinetool,butmountedonthespindlebecomesamulti-axisdrillingmachine,transformedintoamachine,cangreatlyshortentheprocessingtime,improveproductionefficiency.Theutilitymod
4、elrelatestoaadjustablemultispindledrillingmachine,comprisingabody,domore,worktable,themainmotor,thespindleboxisarrangedinthebodyandispositionedontheworktable,whereinthespindleboxisprovidedwithauniversaljoint,theupperendoftheuniversaljointthroughgearorbeltwheelisconnectedwiththemainmotor,u
5、niversaljointthelowerendofthedrillbitisconnectedwiththemainshaft,thedesignincludestheselectionanddistributionofgearwheel,shaftdesign,selectionofthemultiplespindleheads,guidingdevicedesign.Butnowthedomesticmachinetransmissionboxadoptsuniversaljointconnectingrodtypetransmissionstructure,its
6、disadvantagesarethedrillrodpositionadjustmentbytheuniversaljointandtheconnectingrodtorealizethetrouble,regulation,regulationofpositionisnotaccurate,universalexistencealsocausesgearboxaxialsizeincreases,driverigidityispoor,theseshortcomingscanmaketheworkpieceborelocationaccuracyanddimensio
7、nalaccuracycannotbeguaranteed,causingdifficultyinfitting.KEYWORDS:multipledrill;adjust;multiplespindleheads目录摘要IAbstractII第1章绪论11.1可变轴距多轴加工的介绍11.2多轴加工的应用11.3多轴加工优势11.4多轴加工的设备11.4.1多轴头21.4.2多轴箱21.4.3多轴钻床21.4.4自动更换主轴箱机床21.5可变轴距多轴加工趋势3第2章可变轴距多轴钻床的概述42.1可变轴距多轴钻床的定义42.2可
